Compound liner



Feb. 11 1930. J, HOTHERSALL 1,746,396

COMPOUND LINER Filed Nov. 2. 1927 2 Sheets-Sheet 1 I a. W H n 1. z

ATTORNEX? Feb. 11, 1930. J. M. HOTHERSALL COMPOUND LINER 2 Sheets-Sheet 2 Filed NOV. 1927 I INVENTCSR wmma BY )rfi ATTORNEY Patented Feb. 11, 1930 UNITED sTATEs PATENT: OFFICE JOHN M. HOTHERSALL, OF BROOKLYN, NEW YORK, ASSIGNOR TO AMERICAN CAN COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW COMPOUND LINER Application filed November 2, 1927. Serial No. 230,583.

This invention relates in general to the preparation of can ends for attachment to can bodies in the manufacture of the ordinary tin cans of commerce and for the closing of such bodies by the packers. The invention has more, particular reference to the provision of a gasket packing or gasket compound upon the usual flange of the can end and has for its object broadly the provision of an apparatus adapted to economically handle and place upon the can end a compound material of higher viscosity or thicker consistency than has heretofore been usual.

In the manufacture of tin cans the body is first formed and is flanged outwardly at its ends after interseaming with the can ends. The can ends are separately made and are provided with a flange set off from the body by a shoulder and curled at its ends to channeled form. A gasket or lining compound is placed in the can end channel in order that the interfolding of the channel flange of the end and the outwardly extending flange of the body may form a tight, permanent hermetic seal. A can end thus provided with a gasket or compound is seamed to the body at the factory and a similar end is supplied with the finished can body to the packer, who after filling the can with its intended content, places the can end over the open end of the body and seams the flanges together. The compound materials usually employed to provide the gasket upon the can ends have been of a consistency or fluidity permitting its application to the can end through a nozzle which is opened as the flange.

of the can end is rotated beneath it.

This fluidity is ordinarily obtained by the use of a solvent which must be subsequently dried off in suitable driers and consequently the extent of apparatus needed for this purpose depends in large part upon the percentage of solvent employed and this contemplates the application of a compound containing a relatively small percentage of solvent.

A principal object of the invention therefore is the provision of a simple and eflicient apparatus ada ted to apply gasket material containing all relatively small percentage of solvent and being on this account thicker and more viscous in consistency.

This invention has for a further object the provision of an apparatus or device of this character wherein the gasket material will be applied to the can ends in measured amounts and also wherein the parts accomplishing this application will be self-cleaning and require little attention by the operator.

Numerous other objects of the invention will be apparent as it is better understood from the following description, which, taken in connection with the accompanying drawings, discloses a preferred embodiment thereof.

In the drawing:

Figure 1 is a view partly in section of a compound liner with a face plate removed illustrating this invention;

2 is a section taken on the line 22 of 1,9,.

Fig. 3 is a fragmental detail sectional view of a modified form of nozzle; and

Fig. 4 is a sectional view on the vertical plane of the nozzle and at right angles to the plane on which Fig. 1 is taken, and showing the same form of nozzle and spreading device as is illustrated in Fig. 3.

In accordance with the present embodiment of my invention, I have shown on the drawings an apparatus including a frame 5 providing at one side a bearing 6 for a can end support 7 mounted upon the upper end of a rotatable shaft 9. The can end support is formed to receive a can end 8 in alined position and it will be noted that the can end has the usual construction with the channeled peripheral ofl'set flange. I

The frame 5 is extended over the can end support to provide one member 10 of a housing, the purpose and remaining construction of-which will be presently fully explained.

The plate 10 is recessed at 11 to provide a chamber 12 in which are mounted two intermeshing gears 13 which are retained in place by a second plate 18 which encloses them in the chamber 12. A source of can end lining supply 14, which is or may be a tube or tank, is mounted above the frame and communicates at its bottom with chamber 12.and a delivery nozzle or duct providing member 17 communicates also with chamber 12 at its bottom, being threaded into a bore 16 arranged between plates and 18. This nozzle is arranged therefore to receive the lining compound and deliver it to the flange of the can end as the end is rotated by the support. The internal shape of the chamber and its dimensions hear such relation to the shape and dimension of the gear that the gear teeth in the rotation of the gears move closely adjacent to the )resented chamber walls. The gears rotate in the direction of the arrows and it will be noted that the lining compound material, indicated at 15, is picked up or received in the spaces between the gear teeth which carry the compound away from the point of mesh to above the nozzle where meshing togather of the teeth again causes the material to be driven from such spaces to be forced or exuded down and through the ductand exit of the nozzle 17. The teeth in coming into mesh substantially clean the spaces between them and the entire organization is such that accurate, measured quantities of the compound are delivered to successive can ends. The upper surface of the compound 15. 1s preferably open to atmosphere and inasmuch as the gears and compound move in an air tight casing, the spaces between the teeth of the gears after dischar e of the compound are under a vacuum con ition and the atmospheric pressure above the compound forces the same positively, in cooperation with gravity, into the spaces between the teeth. In the case of extremely heavy compound which does not readily flow by gravity this action of the atmospheric pressure is a great advanta e.

lhe left hand gear 13 is mounted upon a short shaft 19 journaled at its ends in the plates 10 and 18 and the right hand gear 13 is keyed at21 to a shaft 20 which also has bearings in these two plates and which also extends through the plate 10 and is keyed at 23 to a Geneva wheel 22, which wheel is adapted to be given intermittent rotation by a Geneva arm 24 mounted on a continuously rotating shaft 27 and carrying a roller 25 adapted to enter into the Geneva wheel and propelling recesses 26.

The construction of the parts and their relative dimensions are such that at each in termittent motion of the Geneva wheel the gears will be rotated through an arc suflicient to cause delivery of the desired predetermined amount of compound for the lining of a single end. The can end just lined at the end of a delivery motion of the parts is removed and an unlined end substituted therefor in any suitable fashion during the period that the gears are at rest and while the arm 24 is moving throughout the idle portion of its rotation.

When extremely heavy compound is used it might be found desirable to spread or distribute the compound onto a can end as it is discharged from the nozzle 17. In such a case the nozzle 17 is or may be provided with a tail 29 as shown in Fig. 3 extending from the exit of the nozzle. During such a time the can end 8 would be rotated beneath the nozzle in the regular way but would be positioned closer to the discharge opening as illustrat-ed.

It is thought that this invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that many changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. In an apparatus for applying acompound liner to can ends, the combination of a source of compound lining material, a support for a can end, and a plurality of cooperating rotary devices for exuding said lining material from said source and onto said can end.

2. In an apparatus for applying a compound liner to can ends, the combination of a source of compound lining material, a support for a can end, and a plurality of cooperating rotary devices for exuding said lining material from said source and onto said can end in measured amount.

3. In an apparatus for applying a compound liner to can ends, the combination of a source of compound lining material, a support for a can end, means establishing comnnmication from said source to a can end upon said support and a plurality of rotary devices associated with said means of'communication and by their rotation exuding the compound onto the flange of the can end.

4. In an apparatus for applying a compound liner to can ends, the combination of a source of compound lining material, a support for a can end, a duct arranged above a can end upon the support, and rotary devices interposed between said duct and compound in said source and in their rotation removing compound from said source and forcibly driving it through said duct to exude the same upon the flange of the can end.

5. In an apparatus for applying a compound liner to can ends, the combination of a source of compound lining material, a support for a can end, a duct arranged above a can end upon a support, rotary devices interposed between said duct and compound in said source and in their rotation removing compound from said source and forcibly driving it through said duct to exude the same upon the flange of the can end, and intermediate driving devices for said rotary devices to measure the amount of compound delivered at each intermittent action to the can ends.

6. In an apparatus for applying a compound liner to can ends, the combination of a source of compound lining material, a support for a can end, a duct adapted to deliver compound upon a can end upon said support, a rotary member communicating at one side with compound in said source and at the other with said duct, and a housing providing a closed chamber in intimate relation with the periphery of said rotary member in its operative travel whereby said rotary member removes compound from said source in measured amount and delivers it under pressure to said duct.

7. In an apparatus for applying a compound liner to can ends, the combination of a source of compound lining material, a gear housing mounted adjacent thereto and openingl at one side to compound in said source, a uct adapted to deliver compound to the flange of the can end on said support and communicating with the interior of said housing, and a gear wheel rotatable in the housing and adapted to pick up compound from said source and deliver it to said duct.

8. In an apparatus for applying a compound liner to can ends, the combination of a support for the can ends' to be lined, a source of compound lining material, a housing associated with said source and communicating therewith, a duct adapted to receive compound and deliver the same to the flange of the can end on said support,-and intermeshing gears arranged in said housing and adapted by their rotation to receive compound from said source and deliver it under pressure to said duct.

9. In an apparatus for applying a compound liner to can ends, the combination of a support for the can ends to be lined, a source of compound lining material, a housing associated with said source and communieating therewith, a duct adapted to receive compound and deliver the same to the flange of the can end on said support, and intermeshing gears arranged in said housing and adapted by their rotation to receive compound from said source and deliver it under pressure to said duct, said gears taking the compound from said source in the travel of the teeth from intermeshing relation.

10. In an apparatus for applying a compound liner to can ends, the combination of a support for a can end to be lined, a source of compound lining material, a duct for delivering compound onto the flange-of said can end, a housing connecting said duct to said source, intermeshing gears mounted in said housing and transferring lining maured amount and under pressure, the relaf tion of the gears being such that after the delivery of compound the intermeshing of the teeth removes substantially all compound between them cleaning the spaces between the teeth in which the compound has been car ried in the delivery.

12. In an apparatus for applying a compound liner to can ends, the combination of a source of compound lining material, means transferring said compound lining material from said source to the flange of the can end and means extending from the compoundexit of said transferring means along and just above the surface of said flange for spreading said compound along said flange.

13. In an apparatus for applying a compound liner to can ends, the combination of a source of compound lining material, means transferring said compound lining material from said source to the flange of the can end and means extending from the compound exit of said transferring means and sliding over the compound after application to the flange of the can end to spread the same.

14. In an apparatus for applying a compound liner to a can end, the combination of a source of compound lining material, a support for the can end, a nozzle applying lining material from said source of compound to the flange of the can end, said nozzle having a portion extending along the surface of said flange and engaging the compound after it is deposited on the flange of'the can end to spread the same.

JOHN M. HOTI-IERSALL.

terial from said source to said duct in measured amount and under pressure, the relation between sald gears and said housing being such that the housmg confines the com- 

